brine solution mining

Brine solution mining is a method used to extract soluble minerals, primarily salt, from underground formations. This process involves drilling a borehole into the salt deposit and injecting fresh water to dissolve the salt, creating a brine solution. The brine is then extracted through the well. Different injection and extraction techniques can create various cavern shapes, and multiple wells can be used in conjunction to increase production.1

This method is also a source for naturally occurring elements like bromine, lithium, and boron, as well as minerals like potash and magnesium. Artificial brines are created by dissolving soluble mineral formations, with salt being a common target. The extracted brine can then be processed, often through evaporation, to obtain the desired minerals.1

While not directly brine solution mining, evaporation of seawater is another method for obtaining salts, utilizing solar energy in large ponds, particularly in hot, dry climates.2